IMPORTANT: The Cloud Dataflow pricing model has changed, effective January 9, 2016. Dataflow jobs are billed according to the new Cloud Dataflow pricing model. Prior to January 9, Dataflow jobs were billed according to the previous Cloud Dataflow pricing model.
Cloud Dataflow is a unified programming model and a managed service for developing and executing a wide variety of data processing patterns. Dataflow includes SDKs for defining data processing workflows, and a Cloud Platform managed service to run those workflows on Google Cloud Platform resources such as Compute Engine, BigQuery, and more.